Mervyn Gregory Hughes, bynames Mad Merv and Sumo (born Nov. 23, 1961, Euroa, Vic., Austl.), Australian cricket player who was one of the most dominant fast bowlers in international cricket during the late 1980s and early 1990s.

Hughes grew up in a working-class suburb of Melbourne, where he played cricket and Australian rules football. He worked briefly in a factory before joining the Victoria cricket team in the 1981–82 season. Mustachioed, potbellied, and encumbered with a lumbering, unathletic gait, Hughes never appeared the epitome of the fast bowler. Selected for the Australian national team in 1985–86, he took just one wicket while yielding 123 runs in his first Test (international two-innings, five-day match) and was quickly dropped. Recalled to play against England in 1986–87, he suffered badly at the hands of the all-rounder Ian Botham (who scored a record 22 runs on one over at Brisbane), and it was not until the second Test in Perth against the West Indies in the 1988–89 series that Hughes established himself as a Test-sure bowler, with match figures of 13 wickets for 217 runs. Thereafter, by sheer hard work, a willingness to experiment, persistence, and guile, he transformed himself into one of the most-feared fast bowlers in Test cricket.

In 1993 Hughes and leg spinner Shane Warne led Australia to a convincing 4–1 series win over England. Warne took 34 wickets and Hughes a heroic 31 after his fast-bowling partner, Craig McDermott, was forced out of the series because of injury. Time and again, Hughes— affectionately dubbed “Sumo” by the British spectators because of his physical similarity to the Japanese wrestlers—garnered a vital wicket when his side badly needed it. Like Botham, Hughes had an uncanny ability to make things happen from nothing, forcing the batsmen—by fair means or foul—into confrontation and into making mistakes. But he also swung the ball late, varied his line and length skillfully, and could, on his good days, be genuinely quick. His batting was erratic—huge sixes (batted balls that clear the boundary on the fly, the equivalent of baseball’s home run)—being mixed with obdurate defense, but he could be a stubborn tail-ender. Off the field “Mad Merv” was a jovial character—a good-humoured, blunt hero to his home crowds, an infectious team member, and popular as a visiting player—however, he was condemned by some for his verbal intimidation of his opponents

Although injury and a second knee surgery in one year forced Hughes to miss the early part of the 1993–94 season, he was named Wisden Cricketer of the Year in 1994. By the end of the 1993–94 season, Hughes had taken a total of 212 wickets in Test competition. In 1995 he went into retirement, but he returned to playing in 1997, for Australian Capital Territory, before retiring again in 1999.